Oblicz pola narysowanych trójkątów
a)
8 = a
8
--- = a
-------------------- = a
3
a= 2i2/3
2i2/3*8/2 = 10i2/3
b)
5*5/2 = 12,5
c)
1*1/2=1/2
d) 6*6/2= 18
e)
5 = a
a = 2,5
2,5*2,5/2 = 6,25*2/2 = 6,25
Wszystko robimy z zaleznosci.
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a)
8 = a
8
--- = a
8
-------------------- = a
3
a= 2i2/3
2i2/3*8/2 = 10i2/3
b)
5*5/2 = 12,5
c)
1*1/2=1/2
d) 6*6/2= 18
e)
5 = a
a = 2,5
2,5*2,5/2 = 6,25*2/2 = 6,25
Wszystko robimy z zaleznosci.